Daniel Koh Email & Phone Number

San Francisco, California, US

• Implemented a feature that fills in a day-to-day itinerary for any of 2,000 cities around the world using Typescript, Node.js, and React which showed 6% greater 8-week user retention and was featured on.
• Led a team of 3 engineers to optimize our React Native app by patching dependencies to cache frequently called functions, eliminating performance-related Play Store complaints over 3 months and raising the app rating.
• Collaborated with the lead designer to implement a new mobile web landing page in React for post-ad-click users, increasing start trial rates by 10%
• Built a service in Node.js to compile trip plan updates and integrate them into an existing notification system, improving re-engagement and boosting 8-week retention by 4%

Carlsbad, CA, US

• Initiated CSS overhaul to make frontend responsive with flexbox and increase lighthouse score by 30 points
• Refactored Java Spring Boot backend to cut down build times by 15x, boosting developer productivity and cutting CI/CD costs
• Fixed critical bugs in use of Redux store, unblocking development of key features and receiving praise from stakeholders during sprint review

Davis, California, US

• Built a Python Flask web app to automate participant selection for research study, reducing processing time from 2 days to 5 seconds and demonstrating scalability for high-efficiency workflows

Bachelor Of Science - Bs, Computer Science

Advanced Software Engineering